Basic AT Command Set (Continued)

VIKING COMPONENTS 56K USB MODEM USER’S GUIDE

Basic AT Command Set (Continued)

Command

Function

I3

Report firmware revision, model, and interface type.

I4

Report response programmed by an OEM.

I5

Report the country code parameter.

I6

Report modem data pump model and code revision.

I7

Reports the DAA code (W-class models only).

L0

Set low speaker volume.

L1

Set low speaker volume.

L2

Set medium speaker volume.

L3

Set high speaker volume.

M0

Turn speaker off.

M1

Turn speaker on during handshaking and turn off while

 

receiving carrier.

M2

Turn speaker on during handshaking and while receiving

 

carrier.

M3

Turn speaker off during dialing and receiving carrier and turn speaker on

 

during answering.

N0

Turn off automode detection.

N1

Turn on automode detection.

O0

Go on-line.

O1

Go on-line and initiate a retrain sequence.

P

Force pulse dialing.

Q0

Allow result codes to DTE.

Q1

Inhibit result codes to DTE.

Sn

Select S-Register as default.

Sn?

Return the value of S-Register.

=v

Set default S-Register to value v.

?

Return the value of default S-Register.

T

Force DTMF dialing.

V0

Report short form (terse) result codes.

V1

Report long form (verbose) result codes.

W0

Report DTE speed in EC mode.

W1

Report line speed, EC protocol and DTE speed.

W2

Report DCE speed in EC mode.

X0

Report basic call progress result codes, i.e., OK, CONNECT, RING, NO CARRIER

 

(also, for busy, if enabled, and dial tone not detected), NO ANSWER and

 

ERROR.

21Chapter 6

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Viking InterWorks 56K manual Basic AT Command Set Continued, Chapter